Santorum focuses on Obama in lukewarm Romney endorsement

One-time GOP presidential hopeful Rick Santorum emailed his endorsement of likely nominee Mitt Romney to supporters late Monday night. The lukewarm letter focused primarily on the need to deny President Barack Obama a second term in office, and made frequent references to Santorum’s oft-voiced doubts about his former bitter primary rival.

In the 16-paragraph letter, the phrase “he has my endorsement” appeared in paragraph 13.

“The primary campaign certainly made it clear that Governor Romney and I have some differences,” Santorum wrote, “But there are many significant areas in which we agree.”